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3 years ago

13x + 15=17x-13 solve for the solution

Mathematics

1 answer:

Archy [21]3 years ago

6 0

Answer: x=7

Step-by-step explanation:

Step 1: Subtract 17x from both sides.

13x+15−17x=17x−13−17x

−4x+15=−13

Step 2: Subtract 15 from both sides.

−4x+15−15=−13−15

−4x=−28

Step 3: Divide both sides by -4.

−4x/−4 =−28/−4

x=7

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Rationalize the denominator 2√7+√3/3√7-√3

Dahasolnce [82]

Answer:

$\frac{2 \sqrt{7} + \sqrt{3}}{3 \sqrt{7} - \sqrt{3} } = \frac{2 \sqrt{7} + \sqrt{3}}{3 \sqrt{7} - \sqrt{3} } . \frac{3 \sqrt{7} + \sqrt{3} }{3 \sqrt{7} + \sqrt{3} } \\ \\ = \frac{(2 \sqrt{7} + 3)(3 \sqrt{7} + \sqrt{3}) }{(3 \sqrt{7} - 3)(3 \sqrt{7} + \sqrt{3} ) } \\ \\ = \frac{(42 + 2 \sqrt{21} + 9 \sqrt{21} + 3 \sqrt{21} )}{63 - 3} \\ \\ = \frac{42 + 2\sqrt{21} + 9 \sqrt{21} + 3 \sqrt{21} }{60}$

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3 years ago

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Tamiku [17]

Answer:

perimeter- 36 in.

area- 77 $in^2$

Step-by-step explanation:

to find the perimeter you add all of the sides, so

7 + 7 + 11 + 11 = 36

*** the opposite side of the 7 is also 7, same with the 11 :)

to find the area for a rectangle, you use the formula A=b*h

so, the base(b)=7 and the height(h)= 11

therefore, 7 * 11 = 77

I hope this helps!! :) if it does, brainliest?? :)

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3 years ago

What is .25 written in its simplest fraction form? A. 2/5 B. 4/1 C. 1/4 D. 100/25

Furkat [3]

0.25 = 25/100

to simplify 25/100, divide 25 from both the numerator and denominator.

25/25 = 1

100/25 = 4

1/4 is the simplest form

C. 1/4 is your answer

hope this helps

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3 years ago

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Create an equation that describes the greatest horizontal length, H, in terms of greatest vertical length v

Sedbober [7]

The question illustrates a linear equation, and the equation that represents the greatest horizontal height is H = 2V + 3

<h3>How to determine the equation?</h3>

From the complete question, we have the following highlights:

The greatest horizontal height is three more than twice the greatest vertical length.

This means that:

H = 2 * V + 3

Evaluate the product

H = 2V + 3

Hence, the equation that represents the greatest horizontal height is H = 2V + 3